Subspecies, varieties, forms and cultivars of plants belonging to the Lophophora williamsii group

Lophophora fricii var. decipiens(Croizat) P.Hansen: With the exception of the smaller and more pale pink flowers, its appearance corresponds to the appearance of Lophophora Fricii.

Lophophora williamsii(Lem. ex Salm-Dyck) J.M.Coult.: Globular or somewhat flattened glaucous green or greyish green spineless cactus up to 6 cm tall, 12 cm diameter, with a woolly top; It has a large taproot which may extend over 25 cm below ground level.

Lophophora williamsii var. caespitosaY.Itô: This name is used to indicate a number of clones of horticultural origin characterized by a more or less accentuated production of axillary shoots that in age grow and form huge cushions.

Lophophora williamsii var. cristataHoughton: There is an impressive array of cristates which forms glaucous green, dull bluish or greyish green, very succulent contorted and convoluted brain-like mounds. They are some of the more striking and priced crested cacti.

Lophophora williamsii var. jourdaniana(Haberm.) hort.: It has rose-violet or dark pink-red perianth, pistil and filaments with small long persisting spines on young areoles. Old plant forms a dense cluster or mound.

Lophophora williamsii var. texanaFrič ex Kreuz.: (or texensis ) is the phenotype from the Texas area (USA), this local form has very grey pruinose stems with numerous flat ribs (up to 14 in adult specimens).

Lophophora williamsii cv. Kikko: This odd cultivar is easily distinguishable for its ± wide and long pointed tubercles along the bumped ribs edges. Seems to be a pretty variable plant with several clones.